config.json gets cached until the next reload of VS Code causing confusion

[itsdouges]

I don't know how to replicate it, but it happened to me once where I was updating the config and nothing was changing, but then when I reloaded VS Code it started doing what I expected as per the change in the config.

I did a quick look over the code and nothing screams to me that it's explicitly cached. It could be from how we cache projects where a cleanup didn't occur when closing all the instances of a project. Needs investigation.